00817cam a22002411 4500 gs 21000131 DLC 20260227111325.0 760412s1919 xx 000 0 eng gs 21000131 (OCoLC)2107060 DLC TxEU DLC QE91 .A4 no. 17 QE92.T9 H6 Howell, J. V. (Jesse V.), 1891- Twin lakes district of Colorado, by J. V. Howell. Denver, Col., Eames bros., state printers, 1919. 108 p. illus., fold. map in pocket, diagrs. 23 cm. Colorado Geological Survey. Bulletin, 17 The author's dissertation, University of Iowa, 1922, but not published as a thesis. Bibliography: p. 16-17. Geology Colorado. 26082 26082